What is an 'infarct'?

• A. An area of excessive bleeding
• B. Localized lack of blood supply
• C. An area of dead tissue
• D. Normal tissue structure

Answer: (C)

An 'infarct' refers specifically to an area of dead tissue, which results from a localized lack of blood supply due to obstruction of a blood vessel. When blood flow is compromised, the affected area is deprived of oxygen and nutrients, leading to cell death and tissue necrosis. This process can occur in various organs, including the heart (myocardial infarct) or the brain (cerebral infarct).

While localized lack of blood supply is an important aspect of what leads to an infarct, the defining characteristic of an infarct is the resultant dead tissue. Therefore, identifying it as an area of dead tissue captures the consequence of the lack of blood supply effectively.

In contrast, excessive bleeding and normal tissue structure do not correlate with the concept of an infarct, as they either represent different pathological states or a healthy state, respectively.